11
votes
8answers
2k views

Are there any mirrored LEGO bricks?

I recently built LEGO Creator 5770: Lighthouse Island which features a clever trick to build the lighthouse's lantern, using stickers on on a Slope Brick 2x2 and Slope Top 1x2x2/3: Step 54 from ...
15
votes
7answers
2k views

Cleaning between the studs of a build

I've unpacked a few of my models after moving home some time ago, these models have been in a cardboard boxes for several months and need cleaning: I've tried compressed air, which only makes some ...
14
votes
7answers
6k views

What is the rarest LEGO production element (colour/shape combination)?

What is the rarest LEGO element according to the following criteria: Genuine LEGO elements, not those available through third party vendors or otherwise modified elements. (So nothing from Brickarms....
1
vote
0answers
32 views

Where can I find this lego piece? [duplicate]

I found this lego piece but I want some more of them for my huge lego project. But where can I find these? I really need exactly this lego piece can someone help me? The lego piece I have: If you ...
4
votes
2answers
962 views

Quality issues with tan-colored Lego pieces?

I recently bought an expensive Lego set with a large number of tan-colored pieces. I was very disappointed to find out that more than a dozen (isn't that a spectacularly large number?) of 1x1 bricks ...
2
votes
1answer
126 views

Some LEGO elements not attaching as usual

I am building a tank made of purely normal LEGO elements, which means no gears or axles or that type of stuff. I am trying to attach a 6x6 LEGO plate onto the base for support, but it is not working....
3
votes
1answer
80 views

Variable stick lengths and angles at nodes of building bricks

Is it possible to build 3D toys connecting several LEGO Bricks sticks/rods to make polyhedrons? Lengths and angles between sticks should be variable.
1
vote
0answers
82 views

Use of Mindsensors IMU with Labview

I thought someone could help me with a the Mindsensors AbsoluteIMU ACG and its use with the Lego Mindstorms NXT. Is it possible to use it with and get data out of it?
4
votes
1answer
971 views

Is it possible to run more than two remote control trains on one track?

My son has two passenger trains and a lego cargo train. We can get two trains running on the track using one remote. But how do you operate a third train? We do have other remotes which came with ...
6
votes
1answer
475 views

How can a Mindstorms robot lift something very heavy?

I have a small LEGO Mindstorms robot and I have to lift something heavy. Now it seems not possible because the motor is not heavy enough.
4
votes
2answers
351 views

Which block manufacturer made this type of person in the 80s

I always thought this was LEGO, and played with it in my LEGOs my whole life (got this in the 80s) but found out recently that it is not LEGO. What brand is it? Who made it? He can hold lego tools, ...
0
votes
0answers
22 views

EV3 FLL Question “ outside the box ” [duplicate]

I am joining our FLL team and I have a question can you please help me? I'm working on the mission "outside the box" and my arm on the robot is not strong enough to lift the box in the air, so that ...
7
votes
1answer
436 views

Building a 45 degree brace

I'm trying to reproduce my own house in Lego, and attached is a photo of the porch above my front door that is supported by a 45 degree wooden brace: At my current scale, the vertical white wood ...
8
votes
3answers
3k views

Any good alternatives to BrickLink?

I'm trying to find certain bricks online, and of course, came across BrickLink. But it's so darn hard to use it; search is absolutely useless, and I can't figure out how to use the catalog for the ...
18
votes
4answers
5k views

When did Lego decide that it was okay to put a stud into a technic hole?

At one point, Lego didn't really support putting a stud into a Technic hole, stating that it caused too much stress on the bricks. And for a while, there were no sets where that's the case. However, ...
8
votes
2answers
584 views

What was the 12v AC socket for on the 7864 transformer?

The 7864 transformer had, in addition of the main regulated outlet for controlling trains and a fixed 12v DC for plugging in remote controls and lights, a third socket available which provided 12v AC. ...
4
votes
3answers
3k views

API for Android or iOS connecting to EV3 by bluetooth

There is official API for Windows, WindowsPhone8 and WinRT https://legoev3.codeplex.com/ it lets you connect to EV3 brick and control it remotely from your WindowsPhone. Are there any libraries ...
5
votes
2answers
320 views

Two-state clicker button

For no particular good reason, I think it would be interesting to build a Lego button that behaves somewhat like the button on a click pen: as you press it, it alternates between a "down" state and an ...
2
votes
2answers
231 views

Question about a Lego Compatible brand

My son has a small orange and grey space ship building set. It has two astronauts with it. The logo on the bricks shows the letters "B L" on them. We're trying to find instructions online so that he ...
3
votes
1answer
122 views

Opera house 10234 book 2 instruction 20 left hand side and then 22 has got me stumped. Can't figure out how these pieces fit. Please help

Opera house 10234 book 2 instruction 20 left hand side and then instruction 22 has got me stumped. I am not sure whether there is a space between the "high 2 and the blue 4. Please help
13
votes
2answers
3k views

Are the LEGO Friends Mini-dolls compatible with Minifigures?

I've seen the new LEGO Friends sets, and wanted to know if the Mini-dolls are compatible in any way with minifigs? I'd quite like to get some sets for the new colours however I want to ensure the ...
2
votes
1answer
146 views

Chamber of Secrets set 4730 assembly issues

We recently obtained a secondhand set with no instructions that I identified to be "The Chamber of Secrets™ 4730". So we downloaded the Building instructions from Lego's website and started to build. ...
3
votes
1answer
128 views

What is this notched or angled 1x2?

It looks old. the only markings on it is LEGOS stamped on the top of the stud holes, and a number 2 stamped on the bottom. It looks like a normal 1x2 with a slight triangle taken out of each side. I ...
3
votes
2answers
273 views

Creating ski gondolas/tramway with Duplos

I've got a three year old who just came home from a ski vacation where he was enamored with the gondolas (like below). I want to make one with Duplos for him. I'm most of the way there, but have a ...
1
vote
1answer
152 views

Which parts can I use to connect a cross axle to a car body?

I have some wheels that are connected to cross axles. The wheels don't turn on the axles (they have an X-shaped centre whole ). Which parts can be used to Connect the axle to the car body? It's ...
2
votes
1answer
139 views

70728/2 Ninjago piece too short?

My son is putting together the 70728 set and the grey tall pieces in book two at step 8 seem to be too short, they leave a gap. By about a mm. Has anyone else had this experience?
1
vote
2answers
743 views

Should I buy the retail or education version of Mindstroms EV3?

There are other questions that list the differences in the retail and educational version but I cannot judge which one I should buy (educational or retail). I am buying Mindstorms for the first time, ...
21
votes
4answers
3k views

Is there a logic to the way The LEGO Group fills the plastic bags?

When opening a new box, most of the pieces are in closed plastic bags, and sometimes inside those plastic bags is another plastic bag for smaller pieces. I find the pieces, for the most part, rather ...
2
votes
2answers
798 views

Ultrasonic sensor option missing in Wait block in Labview

I have hooked up the EV3 brick and the Ultrasonic sensor (on port 4) from the older mindstorms set 8527, and using the most recent Labview software on windows 7. I am trying to test the model for ...
5
votes
4answers
568 views

Can anyone identify this strangely shaped piece (1970s?)

I bought a tin of old Lego second hand - most of the pieces date from the 70s and very early 80s. These definitely say Lego on them. They may be damaged. I cannot find them on other brick identifier ...
7
votes
2answers
670 views

I cannot seem to figure out which figure this policeman is. Help please?

My son recently got a huge box of figures and pieces (from what I can tell an original spaceship wih figure too) and I can't figure out what set is from or how old this figure is. Any help would be ...
30
votes
15answers
8k views

Do LEGO bricks float?

Is it possible to build a boat out of LEGO bricks? I appreciate you couldn't make it watertight but would a LEGO boat float by itself due to the buoyancy of the bricks themselves? Pictures of any ...
1
vote
1answer
558 views

EV3 bluetooth controller for mac

Is there a suitable EV3 controller for mac? It should be a compatible alternative from the official EV3 controller in the iOS app store or google play.
3
votes
1answer
138 views

Is it safe to use a hot glue gun for Mega Bloks?

I've just managed to secure a copy of the Mega Bloks StarCraft Battlecruiser set on eBay after they dropped significantly in value with Blizzard clearing out the last of the stock with their recent ...
2
votes
1answer
310 views

Where will the World First Lego League be held in 2015?

Every year First Lego League (FLL) is held in 3 different countries. I know that the world festival will be held in St. Louis, but where will the other two be? Last year it was held in Germany and ...
5
votes
3answers
569 views

Protecting a minifig from wear

I've purchased a few of the Lego keychain minifigs. Each time I've bought a new one was to replace the previous one because it had most or all of the paint rubbed off from going in and out of pockets ...
6
votes
2answers
1k views

LEGO retiring old sets?

Why does The LEGO Group stop producing/selling older sets when they can still be hot items? I understand that they might affect the sale of future models but older models are rarely replaced by their ...
1
vote
1answer
265 views

Is (C) engraved on a piece an indication that it is Cobi brick?

I know that Lego prints their logo on almost all of their bricks, but some are not given this privilege. I have a couple of pieces, 3x3 in a shape of 2 fingered foot, two pin holes on front corners ...
3
votes
2answers
210 views

How can I find LEGO bargains on eBay?

Sometimes I have been able to find some good deals on used LEGO sets, however most of the time I spend looking for sets is trial and error. I usually search from Toys & Games > Construction Toys ...
18
votes
3answers
736 views

What piece is this ARC-170 Starfighter cockpit?

I got these with the ARC-170 LEGO Starfighter: I'd like to get more if possible. They are a part of the cockpit.
0
votes
0answers
47 views

Linking two blocks [duplicate]

I am in a contest and would like to use one Mindstorm block to control another. I am new at this. We are in invention section of the contest and trying to develop a pipe laying machine. Basically I ...
12
votes
1answer
275 views

What different series are or have there been designed primarly for girls?

My daughter loves to play with LEGO sets but she is really wants to play with pink or 'girl' LEGO. I have ordered a few of the new LEGO Friends sets but I was wondering what other LEGO themes' have ...
14
votes
2answers
6k views

Where do bulk LEGO sellers on eBay get their bricks?

The are a large number of people on ebay selling LEGO by the pound(or kg), for example, this guy. The LEGO is (implied to be) pre-owned as the eBay descriptions often say the bricks have been washed ...
6
votes
4answers
2k views

Are there plans to release new trains for AFOL?

I just built the Maersk train, what an amazing model! I did a little research and found that it was released in 2011 and the Emerald Night was released in 2009. Given the two year gap it seems ...
3
votes
2answers
498 views

Cracked LEGO torso [duplicate]

I recently discovered that my LEGO Legolas minifig from LEGO Lord of the Rings has two small cracks starting from the base of the torso on each side, but I wonder: will these cracks extend and damage ...
29
votes
2answers
14k views

What is the bley (blay) color?

I keep reading on various lego web sites about an elusive brick color called "bley" or "blay". What is it and what is the story behind this?
0
votes
1answer
83 views

If I design a lego set [duplicate]

If I design a Lego set that you may be interested in selling, whom do I contact in the company? My husband iis constantly building new buildings etc. Thought your company may be interested.
5
votes
3answers
266 views

can someone identify this lego character for me?

I have a mini figure that I can't find on the web or any where else (I also don't have any instructions for it). Not sure where it came from but I found it in a pile of lego at home that I collected ...
13
votes
2answers
1k views

Are Samsonite gears compatible with modern Technic gears?

Do the old Samsonite gears (above) work with current Technic gears (below) LEGO bricks tend to be backward compatible with older bricks, but since I don't own any Samsonite gears I cannot tell. ...
23
votes
3answers
2k views

What is the male:female ratio of gendered minifigures?

For many years now, Lego has provided more detail on the face and bodies of minifigures. One of the effects of this is that the usually visually gender-neutral minifigures of my childhood (with the ...

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